- Install the NEW exhaust manifold gaskets.
- Install the exhaust manifold.
- Install the spark plug wire shields.
- If reusing the fasteners, apply threadlock GM P/N 12345493 (Canadian P/N 10953488) or equivalent, to the threads of the exhaust manifold bolts.
Caution: Refer to Fastener Caution in the Preface section.
- Install the exhaust manifold bolts.
5.1. | Tighten the exhaust manifold bolts on the first pass to
15 N·m (11 lb ft). |
5.2. | Tighten the exhaust manifold bolts on the final pass to
30 N·m (22 lb ft). |
- Install the spark plug wires to the spark plug wire retainers.
- Install the spark plug wires onto the spark plugs.